Struct SystemStore

pub struct SystemStore<E, Ctx>
where
    E: EntityStore,
{
    pub priorities: BTreeMap<i32, Vec<u32>>,
    /* private fields */
}

The SystemStore represents the main system storage.

Fields

priorities: BTreeMap<i32, Vec<u32>>

Priorities of the systems.

Implementations

impl<E, Ctx> SystemStore<E, Ctx>

where E: EntityStore,

pub fn new() -> Self

Creates a new system store with default values.

pub fn register_init_system(&mut self, init_system: impl System<E, Ctx>)

Registers the init system.

pub fn register_cleanup_system(&mut self, cleanup_system: impl System<E, Ctx>)

Registers the cleanup system.

pub fn register_system(&mut self, system: impl System<E, Ctx>, system_id: u32)

Registers a new system.

pub fn remove_system(&mut self, system_id: u32)

Removes a system from the storage.

pub fn register_priority(&mut self, priority: Priority, system_id: u32)

Register a priority for the system with the given system_id.

pub fn borrow_entity_system( &self, entity_system_id: u32, ) -> Result<&EntitySystem<E, Ctx>, NotFound>

Returns a reference of a entity system. If the entity system does not exists NotFound will be returned.

pub fn borrow_init_system(&self) -> &Option<EntitySystem<E, Ctx>>

Returns a reference of the init entity system. If the init entity system does not exists None will be returned.

pub fn borrow_cleanup_system(&self) -> &Option<EntitySystem<E, Ctx>>

Returns a reference of the cleanup entity system. If the init entity system does not exists None will be returned.

Trait Implementations

impl<E, Ctx: Default> Default for SystemStore<E, Ctx>

where E: EntityStore + Default,

fn default() -> SystemStore<E, Ctx>

Returns the “default value” for a type.